Tuesday Primetime Ratings:

NBC wins the night in adults, men and women 18-49 and adults, men and women 18-34.

The regular-slot debut of "The Wall" (1.7/6 in 18-49, 6.8 million viewers overall from 8-9 p.m. ET):

· Jumps +42% versus the prior night's 10 p.m. Monday preview in 18-49 (1.7 vs. 1.2) and +49% or 2.2 million persons in total viewers (6.768 million vs. 4.538 million).

· Grows substantially from half-hour to half-hour in every key measure, including gains of +13% in adults 18-49 (1.6 to 1.8), +18% in women 18-49 (1.7 to 2.0) and +21% in men 18-49 (1.4 to 1.7)

· Finishes within 0.1 of "NCIS" and the time-period lead in adults 18-49 (1.7 vs. 1.8).

· Outrates "NCIS" to win the timeslot among the Big 4 in men 18-49 and adults, men and women 18-34.

· Also outrates the Dec. 19 Monday preview of "The Wall" (1.6 in 18-49, 6.5 million viewers overall), which followed a high-rated "America's Got Talent" special.

"Chicago Fire" (1.6/5 in 18-49, 7.6 million viewers overall from 9-10 p.m. ET):

· Wins the slot among the Big 4 in adults 18-49.

· Is close to rounding up to a 1.7 (currently reporting a 1.64 if these prelim fast-affiliate ratings).

· Is currently retaining 94% of its prior original in 18-49 (1.6 vs. 1.7 at 10 p.m. on Dec. 6, which matched the show's high since its season premiere) and 97% in total viewers (7.569 million vs. 7.774 million), despite a four-week break since its last original and last night's special earlier time period.

· Remains undefeated versus regular ABC-CBS competition this season.

· Will add substantial viewership via time-shifting and VOD - so far this season, "Chicago Fire" has grown by +63% in 18-49 rating (from a 1.61 to a 2.63) and +3.8 million viewers overall (7.2 million to 11.0 million) going from L+SD to L+7.

A special Tuesday "Chicago P.D." (1.7/6 in 18-49, 7.8 million viewers overall from 10-11 p.m. ET), concluding a crossover storyline with "Chicago Fire":

· Sets new season highs in 18-49 and total viewers.

· Delivers its top results in nearly 11 months in both 18-49 and total viewers (since Feb. 10, 2016, 2.0 in 18-49, 8.278 million viewers overall).

· Versus its most recent Wednesday original, is up +42% in 18-49 (1.7 vs. 1.2 from 9-11 p.m. on Nov. 16) and +27% or 1.7 million persons in total viewers (7.785 million vs. 6.112 million), despite returning on a special night after a six-week break.

· Wins the slot among ABC, CBS and NBC in every key demo.

· Keeps NBC undefeated in the time period this season in 18-49 versus regular ABC-CBS competition.

· Will add substantial viewership via time-shifting and VOD - so far this season, "Chicago P.D." has grown by +74% in 18-49 rating so far this season going from L+SD to L+7 (from a 1.37 to a 2.38) and +3.6 million viewers overall (6.1 million to 9.7 million) going from L+SD to L+7.

In Late-Night Metered Markets Tuesday Night:

· In Nielsen's 56 metered markets, household results were: "The Tonight Show Starring Jimmy Fallon," 2.2/6 with an encore telecast; "Late Show with Stephen Colbert," 2.7/7; and ABC's "Jimmy Kimmel Live," 1.7/4.

· In the 25 markets with Local People Meters, adult 18-49 results were: "The Tonight Show Starring Jimmy Fallon," 0.8/4 with an encore; "Late Show," 0.5/2; and "Jimmy Kimmel Live," 0.6/3.

· From 12:35-1:05 a.m. ET, ABC's "Nightline" averaged a 1.1/4 in metered-market households and a 0.3/2 in 18-49 in the Local People Meters.

· From 12:35-1:35 a.m. ET, ratings were: "Late Night with Seth Meyers," 1.0/4 in metered-market households with an encore; CBS's "Late Late Show," 1.3/4. In the 25 markets with Local People Meters, averages were: "Late Night," 0.3/2 in 18-49 with an encore; "Late Late Show," 0.3/2.

· At 1:35 a.m., "Last Call with Carson Daly" averaged a 0.6/3 in metered-market households with an encore and a 0.2/2 in adults 18-49 in the 25 markets with local people meters.

NOTE: Primetime results are based on "fast affiliate time period" data from Nielsen Media Research. All ratings are "live plus same day" unless otherwise indicated.